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In an experiment, the period of
vibration of a light source with a
-7
wavelength of 7.40 × 10 ´m was
-15
measured as 2.45 × 10 s. Based on
this measurement, what is the speed
of light?
A. 3.00 × 10°
8 m
S
8 m
B. 3.02×10°
C. 3.04 × 10
-
S
8 m
S
D. 3.06 × 108 m
-
S

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